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Does the Kibble mechanism operate in liquid He-4?

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<mark>Journal publication date</mark>05/2000
<mark>Journal</mark>Journal of Low Temperature Physics
Issue number3/4
Number of pages8
Pages (from-to)249-256
<mark>Original language</mark>English


A rapid passage of He-4 through the lambda (superfluid) transition is expected (W.H. Zurek, Nature 317, 505; 1985) to result in the production of topological defects (quantized vortices) through the Kibble mechanism, the same process that is believed to have produced cosmic strings at the GUT phase transition of the early universe. But recent experiments (Dodd et al, Phys. Rev. Lett. 81, 3703; 1998) show that the density of vortices created, if any, seems to be smaller than predicted by a factor of at least 100. Possible ways of improving the sensitivity of the exoperiment are discussed.

Bibliographic note

The final publication is available at Springer via http://dx.doi.org/10.1023/A:1004688930111